Jigger



July 10,1923.-v 1,676,261

` H. GRASSEY JIGGER` Filed Nov. 5, 1927 This inventionA relates to, machines, such.

Patented 10, 1928- HENRY GRAssnY, Jor* fseek, NEW JERSEY.; f

' '.zrleennxv i #Application filed November 5,1192?. vr--Serial1\T0. 231,17? i" i provide a fabric expanding bow which :pre-

sents to Ithe.;fabric a ysurface that is `convex andwhichfbow is-slidablein aplanel cutting v.the 'plane {oftravel lof the fabric and*v y-ieldingly-i held againstfthesame. In the best.' form this bow isfapart cfa deviceljhavying another Asucl1 fbut reversely curved bow and arranged in. abend maintainedin Vthe rfabric Iso` that :the bows bear against the two stretches thereofonv oppositesides `of said bend, the two bows .being spaced further than such two 'stretches and each consequently yieldingly holding' the other against the fabric. .In this form of. the invention it is not indispensable that the frame slide in a plane.r 1 l Fig. 1 of the accompanyingdrawing shows a jigger, partly in side elevation and partly in section on line 1-1V of Fig. 2, embodying the invention;

Fig. 2 is a horizontal section of the jigger onA line 2-2. Fig. 1, with the device having lthe. bows in plan'and the superstructure` omitted; and.

, Fig. 3 is a similar `fragmentary View illustrating a 'modification falling within they scope of the invention.

. 1 is a dye-vat abovefwhich are journaled the horizontal and parallel beams 2 on which the winding of the vfabric is recipro-VA The alternate driving of theV two beams so. as to cause the reciprocaly Winding thereon may. be effected from a transverse shaft V3 having 'apulley 4 .to

receive a belt (not shown) for rotating it cally effected.

constantly inone direction and having free I l `to rotate thereon two bevel pinions respectively in mesh with bevel pinions 6 on thejtwo beams, these pinions 5 being also clutch .members .between which a clutch member?, slidable to engage either and clear .the other of the pinion clutch members, is f 'splined on'shaft 3, being adapted to bey from onebeamto vthe other.`

shiftedvYoneiwayjoi' .the other thev 1,8; f i

Anywell-known bearing .means' 9 for the beams and ,shaft 3 may. be'employed. In 3 theevat, .near` the. bottom` thereof and near thesurface. of` l'the `.dye liqi 1or','.arev `shown fabric A. extends rin a :bend in .itstraverse In F ig's.- 1 and .2t-he hereinbefore *mene tioned .dev-ice isa framefconstructed and arranged as follows: 11.designates3apair of opposite parallel bars arranged one at one sideand the other at Athe other iside ofand within the v,vat transversely o f theaXes of the beams and arranged to slide horizontally curedtoeach end of eachbar :at itsinner 16o Vthe usual two pairsof. guides, as rollers 1 0, .around which, immersed'in the liquor, the

andlengthwise of themselvesjonstuds 12` iixediin ,said sidesof the vat, having .longil tudinal slotsllato receivesaicl studs. v.Sey side `isa short strip 13,.s eparated fromthe,

bar by spacers 14;.- The opposite strips. 13, `l i one on one fbaipand the other onthegothen are rigidlyV connected by'.a .cur.ved bow l5. The connection between thebars 11,1strips.

:13 andbows 15 may be effected by rivets or otherwise, so that they togetherconstitute a rigid frame slidable on the studs 12 back and forth. The curvature of each bow 15 is outward from the o-therand ina-plane extending transversely 'of the fabric. will `be seen that the frame, supported as stated, stands between thetwo lupright stretches A A2 of the fabric, or in the bend thereof. In a horizontal plane cutting the frame the latter has from (at least) the crown or central part of one bow to that of the other a span greater than the span inl the same horizontal plane lbetween' those two planes whichthe upright stretches of pair of guides and the corresponding beamin .other words, with the frame pr'esentbe-V tween .such stretches its .length is such as to maintain a bend in each stretch as shownin 109' 'Y 1-and being curvedina, plane eX-V tending transversely ofthe fabric it actsflv to bulge or bellythem. In consequence, the f fabric is extended transversely by the bows the :receiving beam without-1 and winds on creasing.

` In the modification, Fig. `3, a bow 16 has A. v-

its ends bent off parallel with each other and slotted. each such end receiving in its 'slot a 'l the fabric tend't'o assume between the vupper pair of fixedv Studs 17 Whichguide the bow 1 1'0.

for movement horizontally. Between a suitable fixed abutment 18 and eachV end of the bow is a compression spring 194 which normally holds the bow in the fullflineposition while permitting it toyield. In .the example 1 a'plane cutting the plane :of travelof the fabric. It is further new to provide a frame -2 or other device arranged between and freely shiftable'(whether or not in a plane) back and -forth from one toward the other of the stretches on opposite sides of a bend therein and having a'span exceeding that between said stretches and a convex surface curved in f a Yplane 'extending transversely of therfabric and bearing'against one of said stretches, ,whereby vthe other stretch will yieldingly V maintain the device so bearing against the first-named stretch; one advantage of this l1s that, Vwhile the pressure of a convex sur face is Ymaintained against. the fabric, the device Amayv shift so as to accommodate itself to Y the change* of positions which the two 'stretches A and A2 tend to undergo 44dueto the diameter of the mass of fabric on the receiving beam increasing and that of the mass onthe other beam decreasing as Ythe transfer from the latter to the former proceeds.

1. In comb'nation, withsupporting means,

`means Vto draw a fabric lengthwise under tension first in one direction and then in the other comprising two beams on first one 'andk then the other of which therfabric is adapted to be wound, means to maintain a bend in the fabric between the two beams, and a device arranged between, and freely shiftable on the supporting means back and forth from Vone toward Ythe other of, the stretches of the fabric at oppositesides of 'said bend and maintaining ai bend in each such .stretch and also having the surface thereof in contact with one stretch curved in a plane extending transversely of the fabric.

2. In combinatmn, with supporting means, means to draw a fabric lengthwise under tension first in one direction and then in the other comprising two beams on first one and y then the other of which the fabric is adapted to be wound, means to maintain a bend in the'` fabric between the two beams, and la device arranged between,` and freelyA shiftable on the supporting means back and forth from'one towardvthe other of,fthe stretches of the fabric at opposite sides of saidbendL and maintaining a bend ineach such stretch and also having the surfaces thereof in contact with said stretches each curved in a' plane extending 'transversely of the fabric.

In testimony whereof I affix my signature.

HENRY GRAssEY. 

